CN205489597U - Many batteries instrument supply circuit - Google Patents
Many batteries instrument supply circuit Download PDFInfo
- Publication number
- CN205489597U CN205489597U CN201620024680.5U CN201620024680U CN205489597U CN 205489597 U CN205489597 U CN 205489597U CN 201620024680 U CN201620024680 U CN 201620024680U CN 205489597 U CN205489597 U CN 205489597U
- Authority
- CN
- China
- Prior art keywords
- battery
- effect transistor
- field effect
- circuit
- diode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a many batteries instrument supply circuit, including at least two battery, the one diode of establishing ties respectively between anodal and the public output of battery pack of its every battery of characterized in that, every diode both ends one field effect transistor that connects in parallel is parallel connection between battery and the battery, and the negative pole of every battery is ground connection all, and the public output of battery pack passes through filter capacitance ground connection, and every field effect transistor's grid is connected to control circuit's different inputs respectively. The utility model discloses using a plurality of batteries to give an instrument simultaneously and supplying power, power supply output voltage can not increase the pressure drop because of having increased battery management circuit, and each battery each other is independent each other moreover, mutual noninterference to the circuit is simple, low cost, and it is little to occupy circuit board space, and it is effectual to supply power.
Description
Technical field
This utility model relates to a kind of instrument power supply circuit, particularly relates to a kind of many battery meter power supply circuits.
Background technology
The correlate meter series products such as current ultrasonic type calorimeter, water meter and intellectual water meter are all the battery powered modes that uses, battery is powered the problem existing for battery life, the battery life common demands of meters product is all that 6+1 is the most especially now, in order to solve life problems or reduce the current drain of circuit board exactly, increase the capacity of battery exactly, the current reduction of circuit board has the limit, therefore simplest mode is just to increase battery capacity.Presently, there are three below problem: 1, present domestic battery quality is the most stable, a collection of battery cannot ensure that each battery can reach the capacity of design, may there is a fraction of battery capacity far below design capacity, if employing single battery, instrument will there are the battery life value far below producer's nominal of sub-fraction instrument, can bring about quality problems, and have no idea to measure the actual capacity of each battery now for this disposable instrument reserve battery, because battery just has run out after Ce Lianging, so, this problem solves with regard to the good way of neither one at all, use external battery cost the highest.2, enclosure designs aspect, instrument specialized lithium Asia battery is all cylindrical, capacity is the biggest, volume is the biggest, space proportion shared in limited shell is the biggest, and the cylindrical battery of this large volume is had a headache for structure designs very much, a lot of producers can only be finally to make a prominent design for battery on shell, causes housing profile to be difficult to see.And use multiple battery, while increasing battery capacity, contour structures can reasonable design, and such as present a lot of portable power source is all the design using multiple batteries.3, indivedual producer is had to be also adopted by the mode used in parallel of this many batteries, they are the simplest uses a diode to carry out isolation processing, so it is possible to prevent battery self discharge each other, but diode drop is the biggest, and this pressure drop changes with size of current, it is on the low side which results in back-end circuit supply voltage, and can cause spread of voltage.And this mode measures battery capacity also can be extremely difficult.
Summary of the invention
In order to solve the problems referred to above, this utility model provides a kind of many battery meter power supply circuits, and an instrument power supply given by multiple batteries simultaneously.
The technical solution of the utility model is realized in, a kind of many battery meter power supply circuits, including at least two battery, is characterized in that connecting respectively between the Anode and battery group public output of each battery a diode, each diode two ends field effect transistor in parallel, for being connected in parallel between battery and battery, the negative pole ground connection of each battery, set of cells public output passes through filter capacitor ground connection, and the grid of each field effect transistor is respectively connecting to the different inputs of control circuit.
Of the present utility model have the technical effect that multiple battery simultaneously give an instrument power supply, power supply output voltage will not increase pressure drop because of adding battery management circuit, and each battery is the most independent, it does not interfere with each other, and the voltage of each battery can be measured, which battery undervoltage, inefficacy can be monitored and arrive, when changing this battery after one of them battery failure online, whole circuit do not had any impact, and circuit is simple, with low cost, take circuit board space little, power effective.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is workflow diagram.
In figure, CN1, CN2, CN3, CN4 are batteries, and D1, D2, D3, D4 are Schottky diodes, and Q1, Q2, Q3, Q4 are field effect transistor, and P1, P2, P3, P4 are the I/O ports of MCU, and C1, C2 are filter capacitors.
Detailed description of the invention
nullAs shown in Figure 1，A kind of many battery meter power supply circuits，Including 4 battery CN1、CN2、CN3、CN4，Connect between the Anode and battery group public output VCC of these 4 batteries Schottky diode D1 respectively、D2、D3、D4，Each diode two ends field effect transistor in parallel，I.e. diode D1 two ends and field effect transistor Q1，Diode D2 two ends and field effect transistor Q2，By that analogy，Battery CN1、CN2、CN3、For being connected in parallel between CN4，The negative pole ground connection of each battery，Set of cells public output VCC is respectively by filter capacitor C1、Filter capacitor C2 ground connection，The grid of each field effect transistor is respectively connecting to the different inputs of control circuit，In the drawings，P1、P2、P3、P4 is the I/O port of MCU，Respectively with field effect transistor Q1、Q2、Q3、The grid of Q4 is connected.
4 batteries make use of one-way conduction and low pressure will to be isolated between battery and battery by Schottky diode, then field effect transistor is used to carry out design in parallel with Schottky diode, when field effect transistor turns on, its pressure drop is almost 0, and the characteristic of field effect transistor determines its conducting electric current and can accomplish very big, field effect transistor is voltage-controlled device, therefore grid control electric current is the least, will not increase leakage current at ordinary times, this is critically important for battery is powered.The switch of 4 field effect transistor can be directly controlled by being connected to 4 grids of the I/O port of MCU.It is to say, field effect transistor to be made an electrical switch, can be by the directly actuated electrical switch of I/O port of MCU.MCU carries AD conversion module, can directly detect supply voltage, thus judge the duty of 4 batteries, thus 4 batteries that automatically switch.1-4 battery can take turns to operate, each battery operated 1 hour, and this circuit can also be supported to fill 1 battery or 2 batteries or 3 batteries or 4 batteries automatically, and hardware circuit and program circuit are just as, the most simple and convenient.
As shown in the flowchart of figure 2, after connecting battery, MCU, by 4 field effect transistor Close Alls, measures voltage V0 as the reference voltage, opens field effect transistor Q1 the most again, connect CN1 battery, test supply voltage after postponing 1 second, if voltage is more than V0, then judge that CN1 has battery to access and working properly, voltage V1 is exactly the cell voltage of CN1, can be by judging that this voltage differentiates battery capacity there remains how many.If battery is normal, persistently use 1 hour, abnormal, directly beginning to turn on CN2, once circulate, until returning first step test Close All each road power supply after CN4 again test V0, moving in circles.
Claims (1)
1. battery meter power supply circuits more than a kind, including at least two battery, is characterized in that connecting respectively between the Anode and battery group public output of each battery a diode, each diode two ends field effect transistor in parallel, for being connected in parallel between battery and battery, the negative pole ground connection of each battery, set of cells public output passes through filter capacitor ground connection, and the grid of each field effect transistor is respectively connecting to the different inputs of control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024680.5U CN205489597U (en) | 2016-01-12 | 2016-01-12 | Many batteries instrument supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024680.5U CN205489597U (en) | 2016-01-12 | 2016-01-12 | Many batteries instrument supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205489597U true CN205489597U (en) | 2016-08-17 |
Family
ID=56667067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620024680.5U Active CN205489597U (en) | 2016-01-12 | 2016-01-12 | Many batteries instrument supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205489597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586352A (en) * | 2017-09-29 | 2019-04-05 | 科斯莫灯饰公司 | Power supply device |
-
2016
- 2016-01-12 CN CN201620024680.5U patent/CN205489597U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586352A (en) * | 2017-09-29 | 2019-04-05 | 科斯莫灯饰公司 | Power supply device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103378636B (en) | Mobile power source control chip and mobile power source with same | |
| CN206610423U (en) | Secondary groups net wireless long-distance meter-reading system | |
| CN106131936A (en) | Solar powered low-power consumption field detection device | |
| CN104167800B (en) | Lithium battery management system and method capable of expanding communication standby power supply | |
| CN104635167A (en) | Online monitoring system and online monitoring method for substation storage batteries | |
| CN107966187A (en) | A kind of tank gage super low-power consumption process circuit and its energy-saving detection method | |
| CN105743190A (en) | Intelligent power source adaption system | |
| CN205489597U (en) | Many batteries instrument supply circuit | |
| CN104880604B (en) | Electric energy meter power supply circuit and the electric energy meter using the circuit | |
| CN203759127U (en) | Device for measuring single-cell battery internal resistance in equalization processes | |
| CN204190446U (en) | A kind of accumulator routing inspection circuit | |
| CN210327075U (en) | Battery charging and discharging circuit breaker circuit | |
| CN202712352U (en) | Intelligent combined lithium ion battery | |
| CN204011599U (en) | A kind of online battery altering crossover assembly | |
| CN204142930U (en) | A kind of accumulator cell charging and discharging electric quantity monitoring table | |
| CN206540974U (en) | Electrical energy data acquiring device and electric energy quality test system | |
| CN202149911U (en) | Power supply circuit of external battery for intelligent three-phase charge control electric meter | |
| CN203416183U (en) | Distributed electric power supply system | |
| CN204886398U (en) | Clock chip supply circuit | |
| CN203326664U (en) | Mobile power supply control chip and mobile power supply using the same | |
| CN105897160A (en) | Photovoltaic module with hot spot warning function | |
| CN207265730U (en) | A kind of electric energy meter with super capacitor | |
| CN203339715U (en) | Peak shifting and valley filling energy storage system and energy storage control device | |
| CN107356791B (en) | Single-phase intelligent ammeter of removable battery | |
| CN106684476B (en) | Lithium battery management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180523 Address after: 412007 Hunan South Zhuzhou city Tianyuan Tiantai Industrial Park South valve single floor joint workshop and auxiliary Patentee after: Zhuzhou Zhujiang Instrument Co., Ltd. Address before: 343008 Electronic Industrial Park No. 3, Hedong development area, Qingyuan District, Ji'an, Jiangxi Patentee before: Ji'an essence gift of money for a friend going on a journey table Science and Technology Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220318 Address after: 518001 1706c10, building C, Tian'an international building, No. 3012, Renmin South Road, Jiabei community, Nanhu street, Luohu District, Shenzhen, Guangdong Province Patentee after: Shenzhen Kanghu new energy transportation development Co.,Ltd. Address before: 412007 Hunan South Zhuzhou city Tianyuan Tiantai Industrial Park South valve single floor joint workshop and auxiliary Patentee before: Zhuzhou Zhujiang Instrument Co.,Ltd. |
|
| TR01 | Transfer of patent right |